影响青贮饲料微生物和化学组成的因素。III. 添加尿素对玉米青贮饲料的影响。
Factors affecting the microbial and chemical composition of silage. III. Effect of urea additions on maize silage.
作者信息
Mahmoud S A, Abd-el-Hafez A, Zaki M M, Saleh E A
出版信息
Zentralbl Bakteriol Naturwiss. 1978;133(3):225-31. doi: 10.1016/s0323-6056(78)80006-8.
The effect of urea additions on the microbiological and chemical properties of silage, produced from young maize plants (Darawa stage), was studied. Urea treatments, i.e., 0.25%, 0.50%, 0.75%, and 1.00%, stimulated higher densities of the desired microorganisms than the control, while undesired organisms showed lower counts (proteolytic and saccharolytic anaerobes). Addition of 0.25 to 0.50% or urea resulted in the production of high quality silage with pleasant small and high nutritive value, as confirmed by the various microbiological and chemical analyses conducted. Higher levels (0.75 and 1.00%) of urea decreased the quality of the product.
研究了添加尿素对由幼嫩玉米植株（达拉瓦阶段）制成的青贮饲料微生物和化学性质的影响。尿素处理，即0.25%、0.50%、0.75%和1.00%，比对照刺激了更多所需微生物的高密度生长，而不需要的微生物数量较少（蛋白水解和糖解厌氧菌）。添加0.25%至0.50%的尿素导致生产出具有宜人气味和高营养价值的优质青贮饲料，这通过进行的各种微生物和化学分析得到了证实。较高水平（0.75%和1.00%）的尿素降低了产品质量。
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